docs: def __exists(self, p):
  
          """
          Check if file of given path exists.
  
          Parameters
          ----------
          p : str or tuple
              Path or tuple identifier.
  
          Returns
          -------
          exists : bool
              ``True``, if file exists. Otherwise ``False``.
          """
  
          try:
              p = self.__pathToTuple(p)
          except TypeError:
              pass
  
          return ((not p[0] and not p[1]) or (p[0] in self.searches and not p[1]) or (p[0] in self.searches and
              p[1] in self.searches[p[0]]))